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Finding the Fourth Proportional to 626.10, 939.14 and 193.26

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Solution

The fourth proportional to 626.10, 939.14 and 193.26 is: 289.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    626.10 : 939.14 = 193.26 : x
  2. Step 2: Convert to fraction form
    626.10/939.14 = 193.26/x
  3. Step 3: Cross multiply
    626.10x = 939.14 × 193.26
  4. Step 4: Simplify right side
    626.10x = 181,498.20
  5. Step 5: Solve for x
    x = 181,498.20/626.10
  6. Step 6: Final answer
    x = 289.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.